1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _SIGNAL_H_ 30 #define _SIGNAL_H_ 31 32 #include <sys/cdefs.h> 33 #include <sys/types.h> 34 35 #include <asm/sigcontext.h> 36 #include <bits/pthread_types.h> 37 #include <bits/signal_types.h> 38 #include <bits/timespec.h> 39 #include <limits.h> 40 41 #include <sys/ucontext.h> 42 #define __BIONIC_HAVE_UCONTEXT_T 43 44 __BEGIN_DECLS 45 46 /* The kernel headers define SIG_DFL (0) and SIG_IGN (1) but not SIG_HOLD, since 47 * SIG_HOLD is only used by the deprecated SysV signal API. 48 */ 49 #define SIG_HOLD __BIONIC_CAST(reinterpret_cast, sighandler_t, 2) 50 51 /* We take a few real-time signals for ourselves. May as well use the same names as glibc. */ 52 #define SIGRTMIN (__libc_current_sigrtmin()) 53 #define SIGRTMAX (__libc_current_sigrtmax()) 54 int __libc_current_sigrtmin(void) __INTRODUCED_IN(21); 55 int __libc_current_sigrtmax(void) __INTRODUCED_IN(21); 56 57 extern const char* const sys_siglist[_NSIG]; 58 extern const char* const sys_signame[_NSIG]; /* BSD compatibility. */ 59 60 #define si_timerid si_tid /* glibc compatibility. */ 61 62 int sigaction(int __signal, const struct sigaction* __new_action, struct sigaction* __old_action); 63 int sigaction64(int __signal, const struct sigaction64* __new_action, struct sigaction64* __old_action) __INTRODUCED_IN(28); 64 65 int siginterrupt(int __signal, int __flag); 66 67 #if __ANDROID_API__ >= __ANDROID_API_L__ 68 sighandler_t signal(int __signal, sighandler_t __handler) __INTRODUCED_IN(21); 69 int sigaddset(sigset_t* __set, int __signal) __INTRODUCED_IN(21); 70 int sigaddset64(sigset64_t* __set, int __signal) __INTRODUCED_IN(28); 71 int sigdelset(sigset_t* __set, int __signal) __INTRODUCED_IN(21); 72 int sigdelset64(sigset64_t* __set, int __signal) __INTRODUCED_IN(28); 73 int sigemptyset(sigset_t* __set) __INTRODUCED_IN(21); 74 int sigemptyset64(sigset64_t* __set) __INTRODUCED_IN(28); 75 int sigfillset(sigset_t* __set) __INTRODUCED_IN(21); 76 int sigfillset64(sigset64_t* __set) __INTRODUCED_IN(28); 77 int sigismember(const sigset_t* __set, int __signal) __INTRODUCED_IN(21); 78 int sigismember64(const sigset64_t* __set, int __signal) __INTRODUCED_IN(28); 79 #else 80 // Implemented as static inlines before 21. 81 #endif 82 83 int sigpending(sigset_t* __set); 84 int sigpending64(sigset64_t* __set) __INTRODUCED_IN(28); 85 int sigprocmask(int __how, const sigset_t* __new_set, sigset_t* __old_set); 86 int sigprocmask64(int __how, const sigset64_t* __new_set, sigset64_t* __old_set) __INTRODUCED_IN(28); 87 int sigsuspend(const sigset_t* __mask); 88 int sigsuspend64(const sigset64_t* __mask) __INTRODUCED_IN(28); 89 int sigwait(const sigset_t* __set, int* __signal); 90 int sigwait64(const sigset64_t* __set, int* __signal) __INTRODUCED_IN(28); 91 92 int sighold(int __signal) 93 __attribute__((deprecated("use sigprocmask() or pthread_sigmask() instead"))) 94 __INTRODUCED_IN(26); 95 int sigignore(int __signal) 96 __attribute__((deprecated("use sigaction() instead"))) __INTRODUCED_IN(26); 97 int sigpause(int __signal) 98 __attribute__((deprecated("use sigsuspend() instead"))) __INTRODUCED_IN(26); 99 int sigrelse(int __signal) 100 __attribute__((deprecated("use sigprocmask() or pthread_sigmask() instead"))) 101 __INTRODUCED_IN(26); 102 sighandler_t sigset(int __signal, sighandler_t __handler) 103 __attribute__((deprecated("use sigaction() instead"))) __INTRODUCED_IN(26); 104 105 int raise(int __signal); 106 int kill(pid_t __pid, int __signal); 107 int killpg(int __pgrp, int __signal); 108 int tgkill(int __tgid, int __tid, int __signal) __INTRODUCED_IN_32(16); 109 110 int sigaltstack(const stack_t* __new_signal_stack, stack_t* __old_signal_stack); 111 112 void psiginfo(const siginfo_t* __info, const char* __msg) __INTRODUCED_IN(17); 113 void psignal(int __signal, const char* __msg) __INTRODUCED_IN(17); 114 115 int pthread_kill(pthread_t __pthread, int __signal); 116 #if defined(__USE_GNU) 117 int pthread_sigqueue(pthread_t __pthread, int __signal, const union sigval __value) __INTRODUCED_IN(29); 118 #endif 119 120 int pthread_sigmask(int __how, const sigset_t* __new_set, sigset_t* __old_set); 121 int pthread_sigmask64(int __how, const sigset64_t* __new_set, sigset64_t* __old_set) __INTRODUCED_IN(28); 122 123 int sigqueue(pid_t __pid, int __signal, const union sigval __value) __INTRODUCED_IN(23); 124 int sigtimedwait(const sigset_t* __set, siginfo_t* __info, const struct timespec* __timeout) __INTRODUCED_IN(23); 125 int sigtimedwait64(const sigset64_t* __set, siginfo_t* __info, const struct timespec* __timeout) __INTRODUCED_IN(28); 126 int sigwaitinfo(const sigset_t* __set, siginfo_t* __info) __INTRODUCED_IN(23); 127 int sigwaitinfo64(const sigset64_t* __set, siginfo_t* __info) __INTRODUCED_IN(28); 128 129 __END_DECLS 130 131 #include <android/legacy_signal_inlines.h> 132 133 #endif 134
